ebdddbbb2a2db91ce6e5b5e170ab8e1fd5e2a39ef1a827f96efdb80de9f7fd11

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-08-2024 20:12

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General

Target

Settings/AMD/clsidleftover.cfg
Size

299B
MD5

79fa1eefc1f6529437462c2e03149643
SHA1

8002ebeec58c17ca67c7ed54d06e3cdae5835d60
SHA256

625f889d5c60a66aed4f9ab1f5556eae8a6ebbcf635b2148b05dbaf16b24e03e
SHA512

50539dfe3842cb53ca75882bcd7e86954208c9b90c032758776dc545cb7f77d0d78495387ac41ebf1510d27ed82f1c8065aca9d5544afcc001689c71587210d9

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\cfg_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.cfg	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.cfg\ = "cfg_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2820	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2820	AcroRd32.exe
2820	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2792	2692	cmd.exe	31
PID 2692 wrote to memory of 2792	2692	cmd.exe	31
PID 2692 wrote to memory of 2792	2692	cmd.exe	31
PID 2792 wrote to memory of 2820	2792	rundll32.exe	32
PID 2792 wrote to memory of 2820	2792	rundll32.exe	32
PID 2792 wrote to memory of 2820	2792	rundll32.exe	32
PID 2792 wrote to memory of 2820	2792	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Settings\AMD\clsidleftover.cfg
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Settings\AMD\clsidleftover.cfg
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Settings\AMD\clsidleftover.cfg"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
a62e2fb30b154fb26f5306fe6f3a85ac

SHA1
cd8307f70027a7cfc7850803a689eec7bea42728

SHA256
9713dd3597cd9a971c460942182d6739f9fd2e69fcaead158dc340fe96db10a7

SHA512
12f9e030ce3fb196b78cd944d5dbb2fc915255d4bea7f52344ca9ce89852b46068ebed9857c08a0891885922417e7f427749f7b3cfad6ad760639d6d140a8dda

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